Changing Mail Exchange (MX) records
Mail Exchange (MX) records control how incoming email is routed for your domain. Before Google can host your email, you’ll need to change these MX records to point to our servers.
If your domain already has email addresses, please be careful changing MX records. To avoid disruption in email service, be sure to create the same set of user accounts with the control panel before changing your MX records Learn more
If you’re not ready to change your MX records yet, use the temporary email address (<username>@napralan.com.test-google-a.com) assigned to your user accounts when you create them. The temporary email address will be deactivated once you change the MX records. You must also verify domain ownership before using any Google Apps.